Since the dawn of time, it seems, diesel fuel has ruled the landscape for powering commercial vehicles.  Sure, every few years a new “fuel of the future” pops up and becomes the darling of the alternative fuel world.  Right now, that fuel is natural gas, either in compressed or liquefied form.  The benefits of natural gas are many: abundant supply, a domestic fuel, low emissions, almost equivalent power and torque to diesel engines, and low price compared to ...

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